:root{--ink:#16302b;--brand:#1f6f5c;--brand-dark:#175445;--accent:#f2a541;--bg:#faf8f4;--card:#ffffff;--muted:#56645f;--line:#e4e0d8;--tint:#e8f1ee;--warm:#fff7e8;--radius:16px;--serif:"Fraunces",Georgia,"Times New Roman",serif;--sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.6;font-size:17px}
a{color:var(--brand)}
img,svg{max-width:100%;height:auto}
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;line-height:1.15}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:780px}
header.site{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:12px;padding-bottom:12px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--ink);text-decoration:none;font-family:var(--sans)}
.logo svg{width:34px;height:34px;flex:none}
nav.main{display:flex;gap:22px}
nav.main a{color:var(--ink);text-decoration:none;font-size:15px;font-weight:500}
nav.main a:hover,nav.main a[aria-current]{color:var(--brand)}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);margin:0 0 14px}
.hero{padding:56px 0 48px}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(32px,4.6vw,50px);margin:0 0 18px}
.hero p.lead{font-size:19px;color:var(--muted);margin:0 0 26px;max-width:32em}
.hero .art{background:var(--tint);border-radius:28px;padding:14px}
.btn{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:600;padding:14px 26px;border-radius:999px;border:0;font-size:17px;font-family:var(--sans);cursor:pointer}
.btn:hover{background:var(--brand-dark)}
.btn.ghost{background:transparent;color:var(--brand);box-shadow:inset 0 0 0 2px var(--brand)}
.btn.ghost:hover{background:var(--tint)}
.btn.small{padding:10px 18px;font-size:15px}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.srcline{font-size:13.5px;color:var(--muted);margin:14px 0 0}
section{padding:56px 0}
section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
h2{font-size:clamp(26px,3.2vw,34px);margin:0 0 10px}
p.sub{color:var(--muted);margin:0 0 30px;max-width:40em}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s}
.pcard:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(22,48,43,.09)}
.pcard .icon{width:46px;height:46px;border-radius:12px;background:var(--tint);display:flex;align-items:center;justify-content:center}
.pcard .icon svg{width:26px;height:26px}
.pcard h3{margin:16px 0 4px;font-size:22px}
.pcard .price{font-family:var(--serif);font-size:28px;font-weight:600;color:var(--brand);margin:6px 0 2px;line-height:1.2}
.pcard .unit{font-size:14px;color:var(--muted);margin:0 0 14px}
.pcard p{margin:0 0 18px;color:var(--muted);font-size:16px;flex:1}
.pcard .more{font-weight:600;color:var(--brand);font-size:15px}
.checklist{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:14px 28px}
.checklist li{display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:start}
.checklist .n{width:34px;height:34px;border-radius:50%;background:var(--accent);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:15px}
.checklist strong{display:block;margin-bottom:2px}
.checklist span.t{color:var(--muted);font-size:16px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;padding:0;margin:0;list-style:none;counter-reset:s}
.steps li{counter-increment:s;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.steps li::before{content:"Step " counter(s);display:block;font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);margin-bottom:8px}
.steps h3{margin:0 0 6px;font-size:20px}
.steps p{margin:0;color:var(--muted);font-size:16px}
.money{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:start}
.money .box{background:var(--warm);border:1px solid #f1dfb8;border-radius:var(--radius);padding:24px}
.money ul{margin:0;padding-left:20px}
.money li{margin-bottom:8px}
details{border-bottom:1px solid var(--line);padding:16px 0}
details summary{cursor:pointer;font-weight:600;font-size:18px;list-style:none;display:flex;justify-content:space-between;gap:16px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";font-size:22px;line-height:1;color:var(--brand)}
details[open] summary::after{content:"\2212"}
details p{margin:10px 0 0;color:var(--muted)}
footer.site{background:var(--ink);color:#cfdad7;padding:40px 0;font-size:14px}
footer.site a{color:#fff;text-decoration:none}
footer.site a:hover{text-decoration:underline}
footer.site .links{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:16px}
footer.site p{margin:0 0 8px;max-width:62em}
/* guide pages */
.crumb{font-size:14px;color:var(--muted);margin:0 0 14px}
.crumb a{color:var(--muted)}
.guide-head{padding:44px 0 8px}
.guide-head h1{font-size:clamp(30px,4.4vw,44px);margin:0 0 12px}
.guide-head .lead{font-size:19px;color:var(--muted);margin:0;max-width:36em}
.updated{font-size:14px;color:var(--muted);margin:14px 0 0}
.keys{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:28px 0 0}
.key{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}
.key .v{font-family:var(--serif);font-size:24px;font-weight:600;color:var(--brand);line-height:1.2}
.key .l{font-size:14.5px;color:var(--muted);margin-top:4px}
.est{background:var(--ink);color:#fff;border-radius:22px;padding:28px;margin:34px 0;display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.est h2{color:#fff;font-size:26px;margin:0 0 6px}
.est p.h{color:#cfdad7;margin:0 0 18px;font-size:16px}
.est label{display:block;font-size:14px;font-weight:600;margin:14px 0 6px;color:#e6efec}
.est select,.est input[type=range]{width:100%}
.est select{padding:11px 12px;border-radius:10px;border:0;font-size:16px;font-family:var(--sans);background:#fff;color:var(--ink)}
.est input[type=range]{accent-color:var(--accent)}
.est .val{float:right;font-weight:700;color:var(--accent)}
.est .out{background:rgba(255,255,255,.08);border-radius:16px;padding:22px;text-align:center}
.est .out .big{font-family:var(--serif);font-size:clamp(28px,4vw,40px);font-weight:600;color:#fff;line-height:1.15}
.est .out .cap{font-size:14px;color:#cfdad7;margin-top:10px}
.prose h2{font-size:26px;margin:38px 0 10px}
.prose p,.prose li{font-size:17px}
.prose ul{padding-left:22px}
.prose li{margin-bottom:8px}
table.cost{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:14px 0 6px;font-size:16px}
table.cost th,table.cost td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line)}
table.cost th{background:var(--tint);font-size:14px;text-transform:uppercase;letter-spacing:.05em}
table.cost tr:last-child td{border-bottom:0}
table.cost td:last-child,table.cost th:last-child{text-align:right;white-space:nowrap}
.partner{background:var(--warm);border:1px solid #f1dfb8;border-radius:22px;padding:28px;margin:38px 0;display:flex;gap:20px;justify-content:space-between;align-items:center;flex-wrap:wrap}
.partner h2{margin:0 0 4px;font-size:24px}
.partner p{margin:0;color:var(--muted);max-width:32em;font-size:16px}
.partner small{display:block;margin-top:8px;font-size:13px;color:var(--muted)}
.source{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:18px;margin-top:40px}
main.doc{padding:48px 0 64px}
main.doc h1{font-size:36px;margin:0 0 6px}
main.doc .date{color:var(--muted);font-size:15px;margin:0 0 28px}
main.doc h2{font-size:22px;margin:30px 0 8px}
main.doc p,main.doc li{font-size:16.5px}
main.doc ul{padding-left:20px}
[hidden]{display:none!important}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr}.hero .art{order:-1;max-width:460px}.grid3,.steps,.keys{grid-template-columns:1fr}.checklist,.money,.est{grid-template-columns:1fr}}
@media (max-width:600px){body{font-size:16.5px}header.site{position:static}header.site .wrap{flex-wrap:wrap;row-gap:10px}nav.main{width:100%;gap:10px;justify-content:space-between}.logo{font-size:18px}.hero{padding:28px 0 36px}section{padding:42px 0}.est{padding:22px}table.cost th,table.cost td{padding:10px 12px}}